Stretch blow molded container and production process thereof

Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...

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264532, 264537, 264539, 26433121, 264148, B29C 4912, B29C 4904, B29C 4700

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active

061594164

ABSTRACT:
The invention provides a stretch blow molded container formed from a thermoplastic resin material which comprises polyglycolic acid having
(a) a repeating unit represented by the following formula (1): ##STR1## (b) a melt viscosity, .eta.* [as measured at a temperature of (the melting point, Tm of the polymer+20.degree. C.) and a shear rate of 100/sec] of 500-100,000 Pa.s;
(c) a melting point, Tm of at least 180.degree. C.;
(d) a melt enthalpy, .DELTA.Hm of at least 20 J/g; and
(e) a density of at least 1.50 g/cm.sup.3 as measured in an unoriented, crystallized form,
wherein the stretch blow molded container has tensile strength (in a circumferential direction) of at least 100 MPa and a carbon dioxide permeability (as measured at a temperature of 23.degree. C. and 80% relative humidity; in terms of the thickness of 50 .mu.m) of 300 cc/m.sup.2.day.atm or smaller at the body sidewall thereof, and a production process thereof.

REFERENCES:
patent: 2676945 (1954-04-01), Higgins
patent: 3442871 (1969-05-01), Schmitt et al.
patent: 4182841 (1980-01-01), Hauenstein
patent: 4424242 (1984-01-01), Barbee
patent: 4565851 (1986-01-01), Barbee
patent: 5403897 (1995-04-01), Ebato et al.
patent: 5409751 (1995-04-01), Suzuki et al.
patent: 5444113 (1995-08-01), Sinclair et al.
patent: 5502158 (1996-03-01), Sinclair et al.
patent: 5556895 (1996-09-01), Lipinsky et al.
patent: 5688586 (1997-11-01), Shiiki et al.
patent: 5703160 (1997-12-01), Dehennau et al.
European Patent Office Communication, including European Search Report for EP 97 30 3144 dated Feb. 5,1998.

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